Padlock



(No Medal.)

' T. MQGLASHAN.

PADLOGK.

Patehted July 13, 1897.

wzinesseq Mrs STATES THOMAS MCGLASIIAN, OF MINNEAPOLIS, MINNESOTA.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 586,104, dated July 13, 1897.

Application filed July 13, 1896.

To all whom it may concern:

Be it known that I, THOMAS MoGLAsHAN, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Padlocks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved padlock adapted especially for use for securing various articles, such as wearing-apparel, lap-robes, &c. to some fixed support-such, for example, as a car-seat, bicycle, or buggy.

The preferred form of my invention is illustrated in the accompanying drawings, wherein, like letters referring to like parts throughout both the views- Figure 1 is a perspective view illustrating my improved padlock as applied to secure both a valise and an overcoat to a car-seat, and Fig. 2 is a plan View of the lock with the upper side of the case out off and a portion of the chain connections being broken away.

In the drawings, Ct indicates a car-seat, and CL the arm-rest or side frame of the same.

1) indicates a valise, and c an overcoat.

In the preferred form of my padlock the l0ck-case is in the form of a rectangular hollow box or shell f, provided at one end with a plunger seat or passage f and with a serrated or toothed surface f Cooperatin g with the serrated surface f and working parallel thereto is a serrated or toothed jaw g, which is provided with a stem g, extending at right angles thereto from one end of the same, working through the passage f of the casef and terminating within said case. The extreme inner end of the stem 9 is guided by one side of said case f and by a guide-flange f formed on said case. At its intermediate portion, on its edge which faces toward the center of the case the stem g is provided with very fine ratchet-teeth g Mounted for reciprocating movement in guides f arranged at substantially right angles to the stem g, is a sliding lock-dog h, which is provided with a cam end 77/, which cooperates with the ratchet-teeth g of said stem g. The bevel of the teeth 9 and of the cam end it of the dog h are such that said stem g and jaw g may be freely moved inward, but will be locked by said dog against outward movement. It will be noted that the inner end of the stem g is provided with a shoulder 9 which extends inward beyondthe extremities of the teeth g so far that it cannot be drawn outward past the end of the dog h. This prevents the jaw g and stem g from being drawn outward beyond a proper extreme open position.

The stem 9 with the jaw g is held under strain to move outward, and the dog 71 h is held under strain to move into engagement with the ratchet-teeth g by means of a fiat leaf-spring 76, which is bent into the form of a bow with one end bearing against the ends of each of said parts. As shown, the intermediate portion of this spring k is secured to the case f by means of a rivet 7a.

The case fis provided with suitable keyhole f through which a suitable key (not shown) may be inserted to engage and release the plunger h h from the teeth 9 To accomplish this engagement, the dog 71 may be pro vided with a notch h and one side of the guide f should be cut away, as shown at f, to permit the flange of the key to engage said notch 72 To release the dog h, the key should be turned as indicated by the dotted arrow in Fig. 2, which will of course move said dog against the tension of the spring. lVhen thus released, the stem 9, with its clamping-jaw g, will be thrown outward into its extreme opened position under the action of the spring 70.

In connection with the look so far described I preferably also employ a chain 19, which is secured at one end to the lock-casef, as shown at p, andis provided at its free end with an enlarged link or ring 19 through which the jaw g is adapted to be inserted, as shown in the drawings.

In using the device to secure an article of wearing-apparel-such as a coat, for examplea portion of such article is placed be tween the serrated jaw surface f on the case f and the movable jaw g on the stem 9, and the said jaw g is then tightly pressed inward onto said article. Under this action the dog h h, by its engagement with the teeth. giwill hold the parts of the lock in their set positions, as already described. By means of the chain p the look, as well as the article held thereby, may be secured to any fixed object, and by running the said chain, for example, through the handle of a grip also the grip, as well as the coat or other article, may also be secured to the fixed object, as shown in the drawings. It is obvious, however, that this padlock maybe used in the ordinary manner to look a grip to a car-seat or the wheels of a bicycle from turning simply by passing the chain p through or around the same in the proper manner and securing the free end of the same by clamping the jaw 9 through the ring 19 andagainst the serrated surface f It is thought that this look will be a very valuable device to traveling men, cyclists, and, in fact, to almost all persons who desire to leave articles of the class above enumerated without danger of the same being stolen or misplaced.

It will of course be understood that various alterations in the details of construction of the preferred form of my device above described may be made without departing from the spirit of my invention. For instance, instead of the chain shown a pivoted hook or beak or equivalent device might be employed, and the jaws or serrated clamping-surfaces might take various forms and be variously arranged.

WVhat I claim, and desire to secure by Let ters Patent of the United States, is as follows:

1. The combination with a padlock-case provided with a jaw or serrated clamping-surface, a movable serrated jaw cooperating with the serrated surface of said case, having a stem portion which works in the interior of said case and is provided with ratchet-teeth, a key-released locking-dog engageable with the ratchet-teeth of said stem, the engagement of said ratchet-teeth and said locking-dog being such as to permit the closing movement of said jaw, but to prevent the opening movement of the same, and a spring device or devices tending to throw said movable jaw and stem outward and said lock-dog into engagement with said ratchet-teeth, substantially as described.

2. The combination with a padlock involving a pair of cooperating clamping jaws or surfaces, one of which is movable with respect to the other and adapted to clamp articles between the same, and means for securing said jaws in their clamping positions, of a locking connection secured at one end to one of said jaw members and detachablyengageable at its free end between said jaws, substantially as described.

8. The combination with the padlock-case f provided with the serrated-j aw surface f, of the movable jaw 9 having the stem g working in the interior of said case and provided with the ratchet-teeth 9 the sliding lock-dog h, h, and the spring 70 working respectively against the ends of the stem g and the lockdog h, h, substantially as described.

4. The combination with the padlock-case f provided with the serrated-jaw surface f of the movable jaw g having the stem g working in the interior of the casef and provided with the ratchet-teeth the key-operated lock-dog h, h, the spring 70 working respectively against the ends of said stem 9 and the lock-dog h, h and the chain or flexible connection 19 secured at one end to said case f and provided at its free end with the link orring 13 which is detachably en gageable between said' jaw portions f and g, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

TI-IOS. HCGLASIIAN.

Witnesses:

BESSIE B. NELSON, F. D. MERCHANT. 

